First of all, burn in doesnt really change a lot on measurements like impulse and decay
its a brain thing because if the modern speaker are changing their sound even after tight tolerance of 10%, then whats the use of those +/-10% accuracy
read carefully, Sony is okayish
also, well, i may not be basshead like you or anyone else, i am more of balance guy... i love my bass till its not ruining my mids(i have heard and designed iem with basshelf at 200Hz while going beyond 15dB of bass)
all the campfire and all the bassy iems bass goes all the way to mids and thats what i hate... and i hate when its done on DD, because it just doesnt perform well
all the campfires and all the Acoustone and IMR sounds fat, muddy and bloated mess to me rather than bassy and well extended
dont get me wrong, i think you have not heard a really good bassy iem
lets talk about Atlas shall we
see carefully, the bass rise from 1kHz
and its going to 15dB
as perceived volume to dB law
every 3dB leads to double the perceived volume
so
lets take 1kHz to 400Hz
400Hz is double as loud
then 200Hz is double as loud
making 200hz ... 4 times louder than 1khz
where human most sensitive hearing range is 100Hz to 1kHz, where he makes sense of fundamental tone like speech fundamentals etc
its already messing it up
and then wrong fundamental pinna which messes up timbre as well
i dont know why you like this
it may wow you initially and then its meh
Odin and Z1R are the greatest basshead iem
meanwhile this iem(craft ears craft 6 custom) may be bass lean, it is hailed as one of the best bass heard on BA, even outpacing DD in what DD does and BA in what BA does.. you can read reviews on it
and this guy came from this thread itself and made an iem, which outpaced Tia driver on treble
https://www.craftears.com/products/model-ce6/
what i want to tell you is
keep your basshead hobby, but respect 200Hz to 1kHz flatness and proper uppermid pinna gain so atleast iem sound realsitic
also, i am using dayton ultimax 12 subwoofer
about my listening taste:
Metroboomin, Daft punk, Mondo Grosso, Eminem, Kanye west, Travis Scott, 21 Savage, Hans Zimmer, Borislav Slavov etc
i dont listen to trance and dub step
now,,,, well, my work
its so much lost in this tread that even i cannot find it where it all started. Other works i keep myself because i dont feel they deem worthy sharing
i only share stuff which is cheap to make, easy to make and is worthwhile
RAB-P series (for RAB driver)
MASM series (have almost 10 iteration and then further design updates as we go along)
i am working on a cheap, reliable bassy but realistic tuning iem
if you need really shot down in your throat bass while having perfect uppermids and realism and have big enough shell
why dont you try the hardest build by
@piotrus-g
the dual CI and TWFK
its still considered advanced build but those dual CI will shake you to the core and then more while not mudying like Atlas and polaris
its still a lot of bass, and i prefer leaking it as it still colours a lot of mids, but it has faster impulse than DD and is not muddy, just a bit more towards bloat on song
i would say, modify it like -3dB on bass and its a very nice V shape bass oriented iem